The Tropopause Occurs at a ________ Elevation Above the Tropics

The tropopause occurs at a ________ elevation above the tropics than above the poles because ________.

A) lower; the stratosphere is thicker over the tropics and so it compresses the troposphere
B) lower; the troposphere weighs more in the tropics and so it sinks
C) higher; the troposphere is hotter in the tropics, and this causes the air to rise to greater heights
D) higher; the stratosphere is thinner over the tropics and this allows the troposphere to expand